CVE-2011-1488
First published: Fri Feb 25 2011(Updated: )
A memory leak in rsyslog before 5.7.6 was found in the way deamon processed log messages are logged when $RepeatedMsgReduction was enabled. A local attacker could use this flaw to cause a denial of the rsyslogd daemon service by crashing the service via a sequence of repeated log messages sent within short periods of time.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/rsyslog | 8.2102.0-2+deb11u1 8.2302.0-1 8.2406.0-1 | |
| Ubuntu Rsyslog | <5.7.6 | |
| openSUSE | =11.4 | |
| Debian | =8.0 | |
| Debian | =9.0 | |
| Debian | =10.0 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2011-1488 https://nvd.nist.gov/vuln/detail/CVE-2011-1488
- https://bugzilla.redhat.com/show_bug.cgi?id=694122
- https://access.redhat.com/security/cve/cve-2011-1488
- http://bugzilla.adiscon.com/show_bug.cgi?id=225
- http://www.openwall.com/lists/oss-security/2011/03/29/3
- http://www.openwall.com/lists/oss-security/2011/04/04/41
- http://git.adiscon.com/?p=rsyslog.git;a=commitdiff;h=dfa88369d4ca4290db56b843f9eabdae1bfe0fd5
- http://git.adiscon.com/?p=rsyslog.git;a=commitdiff;h=8083bd1433449fd2b1b79bf759f782e0f64c0cd2
- https://security-tracker.debian.org/tracker/CVE-2011-1488
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-1488
- http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00005.html
- https://github.com/rsyslog/rsyslog/commit/1ef709cc97d54f74d3fdeb83788cc4b01f4c6a2a
Frequently Asked Questions
What is the severity of CVE-2011-1488?
CVE-2011-1488 is considered a medium severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2011-1488?
To fix CVE-2011-1488, upgrade rsyslog to version 5.7.6 or later.
What systems are affected by CVE-2011-1488?
CVE-2011-1488 affects rsyslog versions prior to 5.7.6 on multiple systems, including Debian and openSUSE.
Can CVE-2011-1488 be exploited remotely?
CVE-2011-1488 is primarily a local attack vector, as it requires a local attacker to send repeated log messages.
What symptoms indicate an exploitation of CVE-2011-1488?
Symptoms of CVE-2011-1488 exploitation include unexpected crashes or unresponsiveness of the rsyslogd daemon.
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